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Multilayer Switched Networks

Over the last 50 years, businesses have achieved improving levels of productivity and competitive advantages through the use of communication and computing technology. Over the past 20 years the enterprise campus network has evolved, becoming a key...Learn More>>

$75

When a network architect hands off a design to you, you must be able to create an implementation plan based on your knowledge of VLANs. As a Cisco administrator, it is important that you understand the purpose of VLANs and how VLAN implementation...Learn More>>

$75

Multiple active paths between switches can cause loops in the network topology. This can cause duplication of frames being forwarded. To prevent loops while providing path redundancy, you can use Spanning Tree Protocol (STP). One limitation of the...Learn More>>

$75

When a network architect hands off a design to you, switches at the distribution layer, or in a collapsed core, will almost certainly have multiple VLANs connected to them. A switch with multiple VLANs requires a means of passing Layer 3 traffic between those VLANs.Learn More>>

$75

A network with high availability provides an alternate means of allowing constant access to all infrastructure paths and key servers. High availability is not only about adding redundant devices. It also implies planning with an eye on where the points of...Learn More>>

$75

Businesses and consumers that rely on intranet and Internet services for their mission-critical communications require and expect their networks and applications to be continuously available to them. A network with high availability provides an...Learn More>>

$75

In a switched network, a host of attacks can be launched at a switch and its ports. MAC flooding, rogue traffic "hopping" from one VLAN to another, spoofing attacks, as well as DHCP and Address Resolution Protocol (ARP) threats can occur at Layer...Learn More>>

$75

When you are migrating to a VoIP network, all network requirements, including power and capacity planning, must be examined so that voice is seamlessly integrated into the existing network.
IP telephony services provided over the...Learn More>>

$75

Wireless LAN (WLAN) is an access technology that has an increasing significance for network access in offices, factories, hotels, and airports, and at home. WLANs are often compared to standard LANs and are often seen as "LANs without...Learn More>>